Personally although I do some short training on the treadmill I find it really boring. I seem to get obsessed with how far and how long i've got left to go. Don't seem to have this problem on the roads.

I guess its easier coz you don't have to have hills unless you want them, the weather isn't a problem and theres no traffic. But I still prefer to be outside even if it is p***ing down and blowing a gale.

If running on the treadmill remember to put it on a slight incline (1%). This makes it more comparable to running on the road (the road doesn't move, the treadmill does).

Give it a go - I know alot of people who do the majority of their on a treadmill. I guess its down to personal preference.

I once did three hours! Can you imagine doing a marathon on a treadmill? Not even Kylie can save your brain from frying.The floor all around the treadmill was covered in lucozade bottles. The gym instructors gave me some funny looks but no one said any thing.

Wasn't there some bloke a year or two back who missed the start of the London Marathon having overslept. D'oh. So he pegged it to the gym and did the 26.2 on the treadmill while watching the race on telly so that he could still get his sponsors to cough up.

The treadmill is ok if you can't run anywhere else for whatever reason and you are only going to do a short distance, but it can't ever replace running outside.

Having run on a wide variety of surfaces I would say that you can still work hard on the treadmill. However, it is easier in some repsects as the belt moves you along, but in other ways it's harder as you get bored quickly and I personally always find there isn't enough air in gyms-especially when there are lots of people in there.

I find treadmill good for intervals. I know it is sl easier than road but i find it harder simply by fact it is more boring.Is good though when someone thinks they are really speedy and run next to you - run faster but only last 5 mins ! sorry- competitive streak.......

I'm now fully converted to outside..rain,sleet or snowOnly use T/M for 2miles after weight training.Can't imagine why i did 2hrs now...it was a long time ago...in a solar system far away(the force was not with me)

I used to only use the Treadmill an hour at a time but now can only have long runs outside. I still use the Treadmill at the gym but only for speed work- 400metres fast, 400m recovery as speed/distance is easier to monitor.

Anyway, you can't get lost on a Treadmill which is half the fun of running anyway!

There is no comparison to running in the lashing rain and howling winds and resultant total solitude !However, being lazy by nature, I do find intervals better done on the treadmill for two reasons. there is the accuracy of distance and pace ( although proper use of heart rate moniters will overcome that ) and its much easier to go the distance and not slow or stop short of the distance or time !

I find the treadmill harder, my best 10k time on the road is 50.26, however if I try to run 5min KM on the treadmill I feel as if I'm sprinting - so bizarre! Why is that? I always thought the treamill was easier but I am now converted to running outside.

Velociraptor made me do 30 hours on a treadmill once, as part of his training of crosses. Velociraptor is a meanie! Treadmills are dead easy compared to outside. For starters the track 'pulls' your legs along so you don't have to push of as much. Curious, what's the max speed (minute miling) on most peoples gyms' treadmills? Mine's 5 minute miling.

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